Murata Manufacturing Co., Ltd.

Yoshihito Niwa

Hiroshi Takagi

A method for measuring the viscosity of a green compact sample includes the steps of finding a corrected value V&prime; of the sample volume of the green compact sample, where the corrected value V&prime; of the sample volume is a volume occupied by the inorganic powder in the green compact sample; finding a corrected value (dh/dt)&prime; of the sample deformation rate of the green compact sample, where the corrected value (dh/dt)&prime; of the sample deformation rate is the difference between the apparent sample deformation rate and the sample deformation rate due to sintering shrinkage; separating a temperature range X in which sintering shrinkage dominates and a temperature range Y in which plastic deformation dominates with respect to the displacement of the green compact sample; substituting the corrected value V&prime; of the sample volume for the sample volume V and substituting the corrected value (dh/dt)&prime; of the sample deformation rate for the sample deformation rate dh/dt in the Gent equation with respect to the temperature range X; and substituting the corrected value V&prime; of the sample volume for the sample volume V in the Gent equation with respect to the temperature range Y.

Method and apparatus for measuring viscosity of green compact sample, and computer readable medium for storing method for measuring viscosity of green compact sample

A method for measuring the viscosity of a green compact includes the steps of finding a corrected value V&prime; of the sample volume of the green compact, where the corrected value V&prime; of the sample volume is a volume occupied by the inorganic powder in the green compact; finding a corrected value (dh/dt)&prime; of the sample deformation rate of the green compact, where the corrected value (dh/dt)&prime; of the sample deformation rate is the difference between the apparent sample deformation rate and the sample deformation rate due to sintering shrinkage; separating a temperature range X in which sintering shrinkage dominates and a temperature range Y in which plastic deformation dominates with respect to the displacement of the green compact; substituting the corrected value V&prime; of the sample volume for the sample volume V and substituting the corrected value (dh/dt)&prime; of the sample deformation rate for the sample deformation rate dh/dt in the Gent equation with respect to the temperature range X; and substituting the corrected value V&prime; of the sample volume for the sample volume V in the Gent equation with respect to the temperature range Y.

Method and apparatus for measuring viscosity of green compact, and computer readable recording medium for storing method for measuring viscosity of green compact

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Kyoto, Japan

Yoshihito Niwa